6364 Commits

Author SHA1 Message Date
Ralf Baechle
e0cc3a42eb MIPS: math-emu: Inline fpu_emulator_init_fpu()
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:12:37 +02:00
Ralf Baechle
3f7cac416b MIPS: math-emu: Cleanup coding style.
o Only define variables in the outermost block
 o One empty line at most
 o Format comments as per CodingStyle
 o Update FSF address in licensing term comment
 o Spell FPU and MIPS in all capitals.
 o Remove ####-type of lines in comments.
 o Try to make things a bit most consistent between sp_*.c / dp_*.c files.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:15 +02:00
Ralf Baechle
49548b09e0 MIPS: math-emu: Cleanup definition of structs describe sp/dp floats.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:15 +02:00
Ralf Baechle
de2fc342b8 MIPS: math-emu: Rename get_rounding() functions.
There are two version of get_rounding(), one for single precision, one
for double precision.  Add a ieee754sp_ rsp. ieee754dp_ prefix for
clarity.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:15 +02:00
Ralf Baechle
90efba36ed MIPS: math-emu: Get rid of the useless parts of exception handling.
All it really did was throw a printk for no obvious reason.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:14 +02:00
Ralf Baechle
593d33fe33 MIPS: math-emu: Move various objects into an ar library.
ieee754d.o contains only debug code and dp_sqrt.o and sp_sqrt.o contain
code which for MIPS I/II/III systems we don't want to link.  Again the
savings can be considerable for some systems:

$ mips-linux-size --totals ieee754d.o dp_sqrt.o sp_sqrt.o
   text	   data	    bss	    dec	    hex	filename
   1624	      0	      0	   1624	    658	ieee754d.o
   2016	      0	      0	   2016	    7e0	dp_sqrt.o
    736	      0	      0	    736	    2e0	sp_sqrt.o
   4376	      0	      0	   4376	   1118	(TOTALS)

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:14 +02:00
Ralf Baechle
f71baa1168 MIPS: math-emu: Inline ieee754sp_issnan and ieee754dp_issnan.
Shaves another 16 bytes off but more importantly avoids function calls.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:14 +02:00
Ralf Baechle
dfbf42b844 MIPS: math-emu: Remove unused code.
Shrinks the FPU emulator by 4528 bytes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:14 +02:00
Ralf Baechle
1bc3320d95 MIPS: math-emu: Remove unused ieee754sp_bestnan() and ieee754dp_bestnan().
Both are unused since lmo commit fdffbafbb38723618626c70ffdc6ff9175cdffa2
[Lots of FPU bug fixes from Kjeld Borch Egevang.]

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:13 +02:00
Ralf Baechle
3a33db2321 MIPS: math-emu: Inline ieee754dp_finite and ieee754dp_finite().
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:13 +02:00
Ralf Baechle
b3a7ad2b0c MIPS: math-emu: Eleminate duplicate definitions of identical macros.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:13 +02:00
Ralf Baechle
3e160aad0f MIPS: math-emu: Use SPSIGN() rather than DPSIGN() in ieee754sp_sub().
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:13 +02:00
Ralf Baechle
ad8fb5537a MIPS: math-emu: Replace DP_MBITS with DP_FBITS and SP_MBITS with SP_FBITS.
Both were defined as 23 rsp. 52 though the mentissa is actually a bit more
than the fraction.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:13 +02:00
Ralf Baechle
f5410d19b0 MIPS: math-emu: Call ieee754di_xcpt, not ieee754si_xcpt in ieee754dp_cmp.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:12 +02:00
Ralf Baechle
1eaf198d3a MIPS: math-emu: Cleanup stdarg usage including apparently bogus comment.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:12 +02:00
Ralf Baechle
08f1faa02a MIPS: math-emu: Remove #if 1 and dead code from its #else branch.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:12 +02:00
Ralf Baechle
e812a73932 MIPS: math-emu: Cleanup ieee754si_indef() / ieee754di_indef().
LONG_LONG_MAX is a symbol defined in <limits.h> which may not be available
so better rely on something provided by a kernel header.  While at it,
turn these function-like macros into inline functions.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:08 +02:00
Ralf Baechle
92df0f8b35 MIPS: math-emu: Convert debug printks to pr_debug getting.
And another bunch of #ifdefs bite the dust.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:04 +02:00
Ralf Baechle
fcfe2285e5 MIPS: math-emu: Get rid of unuable extended precision support.
No usable functionality and nothig does ever define IEEE854_XP anyway.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:11:02 +02:00
Ralf Baechle
66b047dc9c MIPS: IP22: This platform may come with either MIPS III or MIPS IV CPUs.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23 15:10:59 +02:00
Ralf Baechle
41ca86e850 MIPS: Fix branch emulation of branch likely instructions.
Two issues:

  o For beql_op, beql_op, bne_op, bnel_op, blez_op, blezl_op, bgtz_op and
    bgtzl_op the wrong field was being checked for the instruction opcode.
  o For blez_op / blezl_op and bgtz_op / bgtzl_op the test was testing
    for the wrong opcode.

This bug got introduced by d8d4e3ae0b5c179c0bfd3f0af5b352d13bea9cfa [MIPS
Kprobes: Refactor branch emulation].

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Acked-by: Victor Kamensky <kamensky@cisco.com>
2014-05-23 01:00:26 +02:00
Mark Brown
6630f30ed5 Merge remote-tracking branches 'asoc/topic/headers', 'asoc/topic/intel', 'asoc/topic/jz4740', 'asoc/topic/max98090', 'asoc/topic/max98095', 'asoc/topic/mc13783' and 'asoc/topic/multicodec' into asoc-next 2014-05-22 00:23:54 +01:00
Ralf Baechle
e5eb925a18 MIPS: Change type of asid_cache to unsigned long
asid_cache must be unsigned long otherwise on 64 bit systems it will
become 0 if the value in get_new_mmu_context() reaches 0xffffffff and
in the end the assumption of ASID_FIRST_VERSION is not true anymore
thus leads to more dangerous things.

Initial patch by Yong Zhang <yong.zhang@windriver.com>

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Reported-by: libin <huawei.libin@huawei.com>
2014-05-21 12:25:39 +02:00
Ralf Baechle
08a07904e1 MIPS: math-emu: Remove most ifdefery.
Most of these tests should be runtime tests.  This also finally means
that on a MIPS III systems MIPS IV opcodes are going to result in an
exception as they're supposed to.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:58 +02:00
Ralf Baechle
9e8bad1f9c MIPS: math-emu: Turn macros into functions where possible.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:57 +02:00
Ralf Baechle
bee1653593 MIPS: math-emu: Harden ieee754int.h against multiple inclusion.
The header file had no include guards; this only happened to work because
the file only contains macro definitions and protypes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:56 +02:00
Ralf Baechle
47fa0c0251 MIPS: math-emu: Reformat code according to coding style.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:56 +02:00
Ralf Baechle
85c51c511d MIPS: math-emu: Move all debug fs code to a separate file.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:55 +02:00
Ralf Baechle
6d18b6246d MIPS: math-emu: Remove fine example of cargo cult programming.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:54 +02:00
Ralf Baechle
cd8ee345e8 MIPS: math-emu: Header file weeding.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:53 +02:00
Ralf Baechle
5160d45dd2 MIPS: branch: Make inclusion of <asm/branch.h> safe.
It was relying on other headers having been included before.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:53 +02:00
Ralf Baechle
e7e9cae5db MIPS: math-emu: Use helpers to manipulate CAUSEF_BD flag.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:51 +02:00
Ralf Baechle
5a7ebbf893 MIPS: branch: New helpers to modify branch delay slot flag in struct pt_regs
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:49 +02:00
Ralf Baechle
2209bcb131 MIPS: math-emu: Get rid of typedefs.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:48 +02:00
Ralf Baechle
2370881821 MIPS: math-emu: Use English spelling of `constant' rather than Danish.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:48 +02:00
Ralf Baechle
cae55066cb MIPS: math-emu: Mark exception handling functions as __cold.
Optimizes the code flow and shaves of half a percent of the math-emu
code size.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:47 +02:00
Ralf Baechle
f80cc08d78 MIPS: math-emu: Use __BITFIELD_FIELD to eleminate redundant definitions.
Union _ieee754sp was even duplicated even though there are no endian
dependencies in it all.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:46 +02:00
Ralf Baechle
64a17a0ff1 MIPS: Move definition of __BITFIELD_FIELD to sharable header.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21 11:12:45 +02:00
Linus Torvalds
31a3fcab11 Drivercore bugfixes for v3.15
This branch contains bug fixes important to get into v3.15. There is a
 fix for modifying properties seen during early boot, a fix for an
 incorrect prototype when CONFIG_OF=n, and a couple of corrections to
 device tree memory nodes on  a few platforms.
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Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux

Pull device tree fixes from Grant Likely:
 "Drivercore bugfixes for v3.15

  This branch contains bug fixes important to get into v3.15.  There is
  a fix for modifying properties seen during early boot, a fix for an
  incorrect prototype when CONFIG_OF=n, and a couple of corrections to
  device tree memory nodes on a few platforms"

* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux:
  mips: dts: Fix missing device_type="memory" property in memory nodes
  arm: dts: Fix missing device_type="memory" for ste-ccu8540
  of: fix CONFIG_OF=n prototype of of_node_full_name()
  of: make of_update_property() usable earlier in the boot process
2014-05-21 17:54:55 +09:00
Rafał Miłecki
4f4aa2ec24 ssb: sprom: add dev_id field for value overriding standard ID
Some devices may have different features despite sharing the same ID
(e.g. PCI ID). For example 14e4:4331 is usually a dual band, but this
can be "limited". Device with "pci/x/y/devid=0x4332" supports 2.4 GHz
only. Similarly 0x4333 will mean support for 5 GHz only.
Add entry in SPROM so info described above can be extracted and stored.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19 16:42:15 -04:00
Leif Lindholm
dfc44f8030 mips: dts: Fix missing device_type="memory" property in memory nodes
A few platforms lack a 'device_type = "memory"' for their memory
nodes, relying on an old ppc quirk in order to discover its memory.
Add the missing data so that all parsing code can find memory nodes
correctly.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: <stable@vger.kernel.org>
Acked-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-05-16 15:22:53 +01:00
Thomas Gleixner
465665f78a mips: Kill pointless destroy_irq()
Copy and paste leftovers with no functionality at all.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Link: http://lkml.kernel.org/r/20140507154334.008113902@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-16 14:05:18 +02:00
Steven J. Hill
7bb3940940 MIPS: mm: Fix broken microMIPS kernel regression.
Commit f4ae17aa0f2122b52f642985b46210a1f2eceb0a [MIPS: mm: Use scratch for
PGD when !CONFIG_MIPS_PGD_C0_CONTEXT] broke microMIPS kernel builds. This
patch refactors that code similar to what was done for the 'clear_page'
and 'copy_page' functions.

Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6744/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-14 18:11:06 +02:00
Markos Chandras
f2d0801f00 MIPS: Add new AUDIT_ARCH token for the N32 ABI on MIPS64
A MIPS64 kernel may support ELF files for all 3 MIPS ABIs
(O32, N32, N64). Furthermore, the AUDIT_ARCH_MIPS{,EL}64 token
does not provide enough information about the ABI for the 64-bit
process. As a result of which, userland needs to use complex
seccomp filters to decide whether a syscall belongs to the o32 or n32
or n64 ABI. Therefore, a new arch token for MIPS64/n32 is added so it
can be used by seccomp to explicitely set syscall filters for this ABI.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Acked-by: Eric Paris <eparis@redhat.com>
Acked-by: Paul Moore <pmoore@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: linux-mips@linux-mips.org
Link: http://sourceforge.net/p/libseccomp/mailman/message/32239040/
Patchwork: https://patchwork.linux-mips.org/patch/6818/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-14 01:39:54 +02:00
Rob Herring
eafd370dfe Merge branch 'dt-bus-name' into for-next 2014-05-13 18:34:35 -05:00
Ralf Baechle
367f0b50e5 MIPS: Wire up renameat2 syscall.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-13 17:57:33 +02:00
Ralf Baechle
8471ac1b3f MIPS: inst.h: Rename BITFIELD_FIELD to __BITFIELD_FIELD.
<uapi/asm/inst.h> is exported to userland so the macro name BITFIELD_FIELD
pollutes the namespace.  Prefix the name with __ fixes this.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-13 00:29:43 +02:00
Ralf Baechle
cdbb03b004 MIPS: Remove file missed when removing rm9k support a while ago.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-13 00:29:42 +02:00
Aaro Koskinen
8e8acb3296 MIPS/loongson2_cpufreq: Fix CPU clock rate setting
Loongson2 has been using (incorrectly) kHz for cpu_clk rate. This has
been unnoticed, as loongson2_cpufreq was the only place where the rate
was set/get. After commit 652ed95d5fa6074b3c4ea245deb0691f1acb6656
(cpufreq: introduce cpufreq_generic_get() routine) things however broke,
and now loops_per_jiffy adjustments are incorrect (1000 times too long).
The patch fixes this by changing cpu_clk rate to Hz.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: stable@vger.kernel.org
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: cpufreq@vger.kernel.org
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Patchwork: https://patchwork.linux-mips.org/patch/6678/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-13 00:29:41 +02:00
Paul Bolle
3deff25331 MIPS: Loongson: No need to select GENERIC_HARDIRQS_NO__DO_IRQ
Commit 0e476d91244e ("MIPS: Loongson: Add Loongson-3 Kconfig options")
added "select GENERIC_HARDIRQS_NO__DO_IRQ". But the Kconfig symbol
GENERIC_HARDIRQS_NO__DO_IRQ was already removed in v2.6.38, so that
select is a nop. Drop it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/6677/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-13 00:29:40 +02:00